Are you looking for the footprint and symbol for the ATmega328 QFN? Altium Designer's Unified Component Model combines all defining information into a single, placeable design part for your PCB.
Altium Designer 18 uses schematic, PCB, Database, etc. to define different aspects of a component with a unified component library. These libraries exist in the same domain as the design environment and allow direct placement on a schematic and PCB layout. Create and search for components with the most up-to-date pricing and availability from hundreds of certified supplies with:
Real-time BOM Management
IPC Compliant Footprint Wizards In Native 3D
Dynamic Component Placement System
The Unified Component Model means each component has the symbols, variants, footprints, 3D mechanical and simulation models needed for PCB design success. Make data-driven component decisions and request your free Altium Designer 18 trial today!